Answer / paras315

in single phase induction motor stator has single phase
winding,when we give single phase supply, it creats a
pulsating magnetic flux in the air gap but for rotor
rotation there should be a rotating flux.so it is not self
starting.
for starting either auxiliary winding or any means which
splits the single phase flux in at least 2 phase flux can be
used

Answer / wareagle

You could have gone to Google and found this for yourself.


"Single phase induction motor can't produce continuously
rotating magnetic field in the air gap, as either N or S
pole would be present at a time. Single pole is not
sufficient to drive the rotor from one end. So a capacitor
is employed to shift the phase."

Answer / kaushal

Single phase supply to motor can't produce continuously
rotating magnetic field as either N or S
pole would be present at a time. so there will not be force
of repulsion as well as attraction This is not sufficient
to drive the rotor from one end. So a capacitor
is employed to shift the phase & to create rotating magnetic
field.

why generator is star connected ?

3 Answers   Voltech,

---

if 11 lead acid batteries each 200 amph are connected in series so that combinly they can produce 110 volts dc. question is how much backup it can provide ? 2) how can we calculate that how much amprere and voltage is required to charge them . thanks in advance !

1 Answers  

---

difference between Ac and Dc mcb ????

0 Answers  

---

if 300 hrs not comleted at wat interval b.c,d checks og take place

1 Answers  

---

Which is stiffer between salient pole rotor and cylindrical rotor synchronous machines? Justify your answer.

1 Answers  

---

How to calcluate the current by means wires/cables in square mm

2 Answers  

---

What is the Total Power generation Capacity in India at present ??

20 Answers   Bhel, College School Exams Tests, IBM, NTPC,

---

What do you mean by per capita requirement of electrical energy in india

0 Answers   Tech Mahindra,

---

What is the formula to calculate the size of Aluminium and copper cable?

0 Answers  

---

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

---

how to set the transformer differential relay

1 Answers   Divis Laboratories,

---

i alternator which of genarator used for excitor the what is reason?

3 Answers  

---